A screenshot of a computer screen showing a 3d model of a house with a green exterior and a red tiled roof. The house is rendered in Autodesk Autocad, a free-to-use software that allows users to create and edit 3D models of houses. the image also shows various tools and features that can be used to customize the design of the house. on the top left corner of the image, there is a toolbar with various tools such as drawing, modeling, and modeling tools. at the bottom of the screen, there are various icons and tools that allow the user to create, edit, and view the model.